Nintendo 3DS includes two screens. The bottom touch screen makes use of a telescoping stylus that is stored in the unit itself. The top screen displays 3D visuals to the naked eye. Looking at the screen is like peering through a window into a world where characters and objects have true depth. The system also has a 3D Depth Slider that lets players select the level of 3D they enjoy the most. The 3D effect can be ratcheted up to the highest level, scaled back to a more moderate setting or even turned off completely, depending on the preference of the user.

Nintendo 3DS now also includes a Circle Pad, which provides a full 360 degrees of direction, giving it the freedom and precision needed to play games in 3D worlds.

A built-in motion sensor and gyro sensor can react to the motion and tilt of the system, so whether players are twisting their systems side to side or moving them up and down, their motion-compatible Nintendo 3DS games respond instantly.

Two features will allow owners to stay connected in new ways. For owners who choose to activate it, the StreetPass feature is capable of exchanging game information with other Nintendo 3DS systems as owners pass one another. Small packets of information can be exchanged using this data-transfer method, such as Mii character data, maps for games or high scores and custom character data for different games. The SpotPass feature can connect to compatible public hotspots and through a wireless broadband Internet connection at home, even if the system is in Sleep Mode. Once connected, the Nintendo 3DS system will receive new content and updates on a regular basis.

Each Nintendo 3DS system comes pre-loaded with a variety of fun games, applications and features, such as Nintendo 3DS Camera. Nintendo 3DS has three cameras. One camera points at the user, while two additional cameras point outward and take photos in 3D.

The Nintendo eShop, through a system update, will offer access to downloadable games, including Nintendo DSiWare and ones specifically made for Nintendo 3DS.

Built-in parental controls can be used to limit Internet access or some of the wireless functions. By using a PIN code, parents also can turn off the 3D function altogether, or limit the ratings of the games that their kids can play.

Nintendo 3DS can also play Nintendo DS game cards with their original 2D visuals.

Users can either import Mii characters from their Wii systems using an SD memory card or use the camera to take a picture of a person and have an automatic Mii character created.

Built-in game Face Raiders asks users to shoot at funny depictions of their own faces. 3DS when put into Sleep Mode, can act as a pedometer, while letting users earn Play Coins for the steps they take that can then be traded in for additional content.